Ojo, Oyewande; Thomson, Stuart N; Laó-Dávila, Daniel A (2021): Fission-track age determination of the Southern Malawi Rift from rock sample IE0500006 (LM 13 AFT Age SNT) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.937994, In: Ojo, O et al. (2021): Thermotectonic history of rift-bounding faults using apatite fission track data from the Southern Malawi Rift [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.938031
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Published: 2021-11-10 • DOI registered: 2022-05-09
Keyword(s):
Related to:
Ojo, Oyewande; Thomson, Stuart N; Laó-Dávila, Daniel A (2024): Neogene–Quaternary initiation of the Southern Malawi Rift and linkage to the reactivated Carboniferous–Jurassic Shire Rift. Tectonophysics, 877, 230270, https://doi.org/10.1016/j.tecto.2024.230270
Coverage:
Latitude: -14.468717 * Longitude: 35.141800
Event(s):
Comment:
Sample Number: LM 13
Position (#): 18
Area of Graticule Square: 6.400E-07
No. of Crystals: 20
Zeta Factor ±Error: 305.8 ±8.4
Rho d (% Relative Error): 1.553+06
N d: 4969
Mineral: Apatite
Glass (U ppm): 15
Irradiation: UA-A39
Analyst: Oyewande Ojo
Locality: Malawi
Rock Type: Gneiss
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Fission-tracks, spontaneous | N s | # | Ojo, Oyewande | Fission-track | |
| 2 | Fission-tracks, induced | N i | # | Ojo, Oyewande | Fission-track | |
| 3 | Number of squares | N square | # | Ojo, Oyewande | Fission-track | Number of squares of the microscope grid in which tracks were counted |
| 4 | Diameter | Ø | µm | Ojo, Oyewande | Fission-track | Dpar - mean etch pit diameter parallel to the c-axis for each grain |
| 5 | Diameter | Ø | µm | Ojo, Oyewande | Fission-track | Dpar - mean etch pit diameter perpendicular to the c-axis for each grain |
| 6 | Fission-tracks, spontaneous, density | p s | 106 #/cm2 | Ojo, Oyewande | Fission-track | |
| 7 | Fission-tracks, induced, density | p i | 106 #/cm2 | Ojo, Oyewande | Fission-track | |
| 8 | Ratio | Ratio | Ojo, Oyewande | Calculated | p s/p i | |
| 9 | Uranium | U | mg/kg | Ojo, Oyewande | Fission-track | Derived from the ratio between N s/N i |
| 10 | Age, mineral | Age mineral | Ma | Ojo, Oyewande | Age, fission-track | Single grain age |
| 11 | Age, standard error | Age std e | ± | Ojo, Oyewande | Age, fission-track | 1 σ |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
220 data points
Data
| 1 N s [#] (Fission-track) | 2 N i [#] (Fission-track) | 3 N square [#] (Number of squares of the micr...) | 4 Ø [µm] (Dpar - mean etch pit diameter...) | 5 Ø [µm] (Dpar - mean etch pit diameter...) | 6 p s [106 #/cm2] (Fission-track) | 7 p i [106 #/cm2] (Fission-track) | 8 Ratio (p s/p i, Calculated) | 9 U [mg/kg] (Derived from the ratio betwee...) | 10 Age mineral [Ma] (Single grain age, Age, fissio...) | 11 Age std e [±] (1 σ, Age, fission-track) |
|---|---|---|---|---|---|---|---|---|---|---|
| 179 | 282 | 100 | 1.73 | 0.50 | 2.80E6 | 4.41E6 | 0.6348 | 42.6 | 148.99 | 14.97 |
| 33 | 58 | 100 | 1.65 | 0.50 | 5.16E5 | 9.06E5 | 0.5690 | 8.8 | 133.71 | 29.45 |
| 82 | 139 | 100 | 1.73 | 0.50 | 1.28E6 | 2.17E6 | 0.5899 | 21.0 | 138.58 | 19.77 |
| 25 | 47 | 100 | 1.57 | 0.50 | 3.91E5 | 7.34E5 | 0.5319 | 7.1 | 125.08 | 31.20 |
| 209 | 313 | 100 | 1.63 | 0.50 | 3.27E6 | 4.89E6 | 0.6677 | 47.2 | 156.64 | 14.81 |
| 36 | 84 | 100 | 1.47 | 0.50 | 5.63E5 | 1.31E6 | 0.4286 | 12.7 | 100.97 | 20.36 |
| 165 | 293 | 50 | 1.70 | 0.50 | 5.16E6 | 9.16E6 | 0.5631 | 88.4 | 132.35 | 13.52 |
| 48 | 105 | 50 | 1.90 | 0.50 | 1.50E6 | 3.28E6 | 0.4571 | 31.7 | 107.65 | 19.05 |
| 51 | 76 | 100 | 1.91 | 0.50 | 7.97E5 | 1.19E6 | 0.6711 | 11.5 | 157.41 | 28.91 |
| 156 | 355 | 100 | 1.47 | 0.50 | 2.44E6 | 5.55E6 | 0.4394 | 53.6 | 103.51 | 10.45 |
| 75 | 151 | 100 | 1.72 | 0.50 | 1.17E6 | 2.36E6 | 0.4967 | 22.8 | 116.87 | 16.90 |
| 78 | 128 | 50 | 1.62 | 0.50 | 2.44E6 | 4.00E6 | 0.6094 | 38.6 | 143.10 | 21.03 |
| 167 | 247 | 100 | 1.93 | 0.50 | 2.61E6 | 3.86E6 | 0.6761 | 37.3 | 158.58 | 16.63 |
| 52 | 120 | 100 | 1.88 | 0.31 | 8.13E5 | 1.88E6 | 0.4333 | 18.1 | 102.08 | 17.24 |
| 65 | 142 | 100 | 1.83 | 0.50 | 1.02E6 | 2.22E6 | 0.4577 | 21.4 | 107.79 | 16.48 |
| 56 | 122 | 100 | 1.83 | 0.50 | 8.75E5 | 1.91E6 | 0.4590 | 18.4 | 108.08 | 17.76 |
| 43 | 98 | 100 | 1.74 | 0.50 | 6.72E5 | 1.53E6 | 0.4388 | 14.8 | 103.36 | 19.17 |
| 64 | 129 | 100 | 1.80 | 0.50 | 1.00E6 | 2.02E6 | 0.4961 | 19.5 | 116.74 | 18.21 |
| 67 | 120 | 50 | 1.71 | 0.50 | 2.09E6 | 3.75E6 | 0.5583 | 36.2 | 131.23 | 20.42 |
| 99 | 175 | 100 | 1.83 | 0.50 | 1.55E6 | 2.73E6 | 0.5657 | 26.4 | 132.95 | 17.22 |